If we got another Fighter's Pass, I think another Microsoft character could be likely, and all of the reactions of B&K from non-fans and casual fans mentioned
Master Chief. Would be a big deal to get the iconic character of Xbox. Would make sense, if we got Minecraft content with B&K as the rumors suggest, but nothing related to Master Chief. Doubt it a little, because perhaps it's not a character that appeals to Sakurai.
Sora makes sense as another big character that would make headlines, and the clout that comes with working with Disney (I am certain they would not be as hard to work with as most people believe). While Square Enix would be involved, Sora is owned by Disney, and is why I'm comfortable also having
Geno despite the overlap, and makes sense as a final character. I do think, despite Hero being in, that Geno also has a chance for Fighter's Pass 1.
Phoenix Wright feels right as the next Capcom character after Dante, for me (though I could see him being in Fighter's Pass 1 instead). Not sure how it would work, which is why I'm uncomfortable putting him in Fighter's Pass 1, but fans claim it would work and was likely highly requested. I thought about Monster Hunter and Resident Evil, but decided against the former already having a presence in Smash, and the latter not quite fitting Smash (from my perspective, not making claims about what Sakurai would think). And I feel like a second Fighter's Pass would need to work with other new companies, outside of Disney, and I'm hesitant to go with another Western character outside of B&K and Crash. So, I think this would be the perfect place to put a character from an indie game, and I think
Travis Touchdown is the most likely (don't care about claims to the contrary, he showed up in a Indies Direct, he's indie to me). I also thought about a Konami character, I would like some Ghosts N Goblins representation, but it was hard especially with Bomberman being an assist trophy.
So my reasoning would go as follows:
1. Joker (Atlus - Promotional)
2. Hero (Square Enix - Requested/Promotional)
3. Banjo & Kazooie (Microsoft - Requested)
4. Dante (Capcom - Promotional)
5. Crash (Activision - Requested/Promotional)
6. Master Chief (Microsoft - Promotional)
7. Sora (Disney- Requested/Promotional)
8. Phoenix Wright (Capcom - Requested/Promotional)
9. Travis Touchdown (Grasshopper Manufacture - Promotional)
10. Geno (Square Enix - Requested)
Whether I counted it as Promotional or Requested, I judged based on these
poll results, and considered them requested if they got over 100. Completely arbitrary, and arbitrary that I used this poll. Best I could do, I think, to make this as objective as I can. Promotional also doesn't mean it promotes a game with Nintendo, just promotional for the franchise. And I count Hero as requested as well, because I think it's fair to assume Dragon Quest was highly requested in Japan as these polls have a Western bias. I should also mention these aren't characters I necessarily want, but characters I think would happen--I would personally like Crash, Sora, Bomberman, Dante, Dixie, and Waluigi.